基于ARM实现电力多参数测量实时系统.doc

摘要ABSTARCT·······························································Ⅳ 1 概述····································································1 1.1提出问题·····························································1 1.2 国内外研究现状及发展趋势···············································1 1.3 本文主要工作···························································2 2 电力参数测量及谐波分析原理与算法····································3 2.1 交流采样的实现方法·····················································3 2.2 电力参数算法···························································5 2.3 谐波信号分析理论基础···················································8 2.4 电力仪表内温度检测电路原理············································17 2.5本章小结·······························································19 3 主要器件的原理与选用·················································20 3.1 主控制器的选择························································20 3.2 存储器的选择··························································22 3.3 A/D转换器的选择·····················································23 3.4 本章小结·····························································24 4 硬件电路设计与软件编程实现··········································25 4.1 总体硬件方案··························································25 4.2 电源电路的设计························································26 4.3 电压电流测量电路的设计················································27 4.4 复位电路的设计························································29 4.5 存储器扩展电路的设计··················································30 4.6 液晶模块电路的设计····················································31 4.7 键盘电路的设计························································32 4.8 CAN总线接口电路的设计················································33 4.9 A/D转换电路的设计····················································35 4.10 温度测控系统的硬件设计设计···········································36 4.11 软件设计·····························································37 4.12 本章小结·····························································42 5 结论····